Minster IOI, Руководство по обслуживанию

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WARNING
NEVER ATTEMPT TO INSTALL OR ADJUST DIES IN
THE PRESS, OR REMOVE DIES, WHILE THE FLY-
WHEEL IS TURNING. KINETIC ENERGY REMAIN-
ING WITHIN A TURNING FLYWHEEL COULD
STROKE THE SLIDE, IF THE CLUTCH WERE ACCI-
DENTALLY ENGAGED, AND POSSIBLY CAUSE A
PERSONAL INJURY.
FLYWHEEL BRAKE MAINTENANCE
Once each month inspect the flywheel brake assembly
and check the following items:
1. Observe operation of the brake piston to make cer-
tain it is braking properly. Normally, the brake
should stop the flywheel within 5 to 10 seconds
(See NOTE below) after depressing the motor stop
button. Make certain the piston is retracting fully
when air is exhausted.
NOTE: Stopping times will vary depending upon
the press speed. Higher speeds require
greater stopping time.
2. Check the assembly and associated piping for air
leaks. Repair if necessary.
WARNING
NEVER PRESSURIZE THE FLYWHEEL BRAKE
WHILE IT IS REMOVED FROM THE PRESS FOR
REPAIR OR OTHER MAINTENANCE. PRESSURIZ-
ING THE BRAKE UNDER THIS CONDITION COULD
CAUSE EXPLOSIVE RELEASE OF AIR PRESSURE
AND POSSIBLY RESULT IN SERIOUS OR FATAL
INJURY.
3. Check friction material for wear and broken sec-
tions. The friction material is fastened to the brake
piston with a single .250” - 20 x .500” long Socket
(Low) Head Cap Screw.
NOTE: If friction material is replaced, use a new
screw and apply several drops of Loctite
Adhesive Grade 242 (Blue Liquid) to the
threads.
4. Make certain the flywheel brake pressure switch is
operating properly. The switch should close if air
pressure drops below 20 psi (1.4 Bar).
5. Check tightness of brake anchor plate and cylinder
mounting screws. Retighten as necessary.
6. If unit is disassembled, apply a thin coating of
Molybdenum Disulfide grease to the inside cylinder
wall before reinserting the piston.
DIE CUSHION
CAUTION
MAKE CERTAIN THAT LOAD EXERTED ON THE
CUSHION IS CENTRALLY LOCATED ON THE PAD.
DO NOT LOAD DIE CUSHION OFF CENTER.
Model 101 OBI/OBS Series presses may be equipped
with an optional pneumatic die cushion system. Die
cushion pressure varies with each job and the correct
pressure is determined by trial. If the workpiece tears,
cushion pressure is too high; if the part wrinkles, pres-
sure is too low. Do not operate the cushion at pressures
exceeding 100 psi (6.9 Bar). Start with low pressure
and alternately stroke press and increase pressure
until the part is correctly formed and ejected with mini-
mum die cushion pressure.
E - 11
!
!
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Air Solenoid
Brake Location
(Geared Press)
Brake Location
(Flywheel Press)
Figure 8E. Flywheel brake locations.